./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops/sum_array-2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5317dae Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loops/sum_array-2-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0cf9175e436d0e00a51b884dabf87739d3176e3315a908e56fcba99730a10796 --- Real Ultimate output --- This is Ultimate 0.2.2-?-b5317da-m [2023-02-16 01:17:54,733 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-16 01:17:54,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-16 01:17:54,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-16 01:17:54,759 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-16 01:17:54,761 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-16 01:17:54,763 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-16 01:17:54,765 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-16 01:17:54,767 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-16 01:17:54,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-16 01:17:54,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-16 01:17:54,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-16 01:17:54,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-16 01:17:54,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-16 01:17:54,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-16 01:17:54,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-16 01:17:54,779 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-16 01:17:54,780 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-16 01:17:54,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-16 01:17:54,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-16 01:17:54,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-16 01:17:54,786 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-16 01:17:54,787 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-16 01:17:54,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-16 01:17:54,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-16 01:17:54,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-16 01:17:54,794 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-16 01:17:54,796 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-16 01:17:54,796 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-16 01:17:54,797 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-16 01:17:54,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-16 01:17:54,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-16 01:17:54,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-16 01:17:54,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-16 01:17:54,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-16 01:17:54,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-16 01:17:54,801 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-16 01:17:54,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-16 01:17:54,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-16 01:17:54,802 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-16 01:17:54,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-16 01:17:54,804 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-16 01:17:54,827 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-16 01:17:54,827 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-16 01:17:54,827 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-16 01:17:54,827 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-16 01:17:54,828 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-16 01:17:54,828 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-16 01:17:54,829 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-16 01:17:54,829 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-16 01:17:54,829 INFO L138 SettingsManager]: * Use SBE=true [2023-02-16 01:17:54,829 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-16 01:17:54,830 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-16 01:17:54,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-16 01:17:54,830 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-16 01:17:54,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-16 01:17:54,830 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-16 01:17:54,830 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-16 01:17:54,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-16 01:17:54,831 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-16 01:17:54,831 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-16 01:17:54,831 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-16 01:17:54,831 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-16 01:17:54,831 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-16 01:17:54,832 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-16 01:17:54,832 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-16 01:17:54,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 01:17:54,832 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-16 01:17:54,832 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-16 01:17:54,832 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-16 01:17:54,832 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-16 01:17:54,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-16 01:17:54,833 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-16 01:17:54,833 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-16 01:17:54,833 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-16 01:17:54,833 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-16 01:17:54,833 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-16 01:17:54,834 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cf9175e436d0e00a51b884dabf87739d3176e3315a908e56fcba99730a10796 [2023-02-16 01:17:55,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-16 01:17:55,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-16 01:17:55,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-16 01:17:55,042 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-16 01:17:55,043 INFO L275 PluginConnector]: CDTParser initialized [2023-02-16 01:17:55,043 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/sum_array-2-2.i [2023-02-16 01:17:55,927 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-16 01:17:56,162 INFO L351 CDTParser]: Found 1 translation units. [2023-02-16 01:17:56,163 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum_array-2-2.i [2023-02-16 01:17:56,169 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26e68c3dc/5f9ec0606085464ebf7e5d23f181674f/FLAGbe110365c [2023-02-16 01:17:56,196 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26e68c3dc/5f9ec0606085464ebf7e5d23f181674f [2023-02-16 01:17:56,199 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-16 01:17:56,199 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-16 01:17:56,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-16 01:17:56,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-16 01:17:56,204 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-16 01:17:56,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 01:17:56" (1/1) ... [2023-02-16 01:17:56,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54ca58bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:17:56, skipping insertion in model container [2023-02-16 01:17:56,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 01:17:56" (1/1) ... [2023-02-16 01:17:56,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-16 01:17:56,226 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 01:17:56,314 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum_array-2-2.i[940,953] [2023-02-16 01:17:56,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 01:17:56,332 INFO L203 MainTranslator]: Completed pre-run [2023-02-16 01:17:56,340 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum_array-2-2.i[940,953] [2023-02-16 01:17:56,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 01:17:56,375 INFO L208 MainTranslator]: Completed translation [2023-02-16 01:17:56,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:17:56 WrapperNode [2023-02-16 01:17:56,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-16 01:17:56,377 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-16 01:17:56,377 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-16 01:17:56,377 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-16 01:17:56,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:17:56" (1/1) ... [2023-02-16 01:17:56,392 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:17:56" (1/1) ... [2023-02-16 01:17:56,406 INFO L138 Inliner]: procedures = 18, calls = 37, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 128 [2023-02-16 01:17:56,407 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-16 01:17:56,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-16 01:17:56,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-16 01:17:56,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-16 01:17:56,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:17:56" (1/1) ... [2023-02-16 01:17:56,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:17:56" (1/1) ... [2023-02-16 01:17:56,415 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:17:56" (1/1) ... [2023-02-16 01:17:56,415 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:17:56" (1/1) ... [2023-02-16 01:17:56,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:17:56" (1/1) ... [2023-02-16 01:17:56,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:17:56" (1/1) ... [2023-02-16 01:17:56,423 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:17:56" (1/1) ... [2023-02-16 01:17:56,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:17:56" (1/1) ... [2023-02-16 01:17:56,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-16 01:17:56,426 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-16 01:17:56,426 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-16 01:17:56,426 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-16 01:17:56,427 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:17:56" (1/1) ... [2023-02-16 01:17:56,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 01:17:56,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 01:17:56,452 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-16 01:17:56,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-16 01:17:56,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-16 01:17:56,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-16 01:17:56,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-16 01:17:56,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-16 01:17:56,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-16 01:17:56,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-16 01:17:56,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-16 01:17:56,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-16 01:17:56,542 INFO L235 CfgBuilder]: Building ICFG [2023-02-16 01:17:56,544 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-16 01:17:56,707 INFO L276 CfgBuilder]: Performing block encoding [2023-02-16 01:17:56,711 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-16 01:17:56,712 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2023-02-16 01:17:56,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 01:17:56 BoogieIcfgContainer [2023-02-16 01:17:56,713 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-16 01:17:56,714 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-16 01:17:56,714 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-16 01:17:56,716 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-16 01:17:56,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 01:17:56" (1/3) ... [2023-02-16 01:17:56,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@670bd41b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 01:17:56, skipping insertion in model container [2023-02-16 01:17:56,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 01:17:56" (2/3) ... [2023-02-16 01:17:56,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@670bd41b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 01:17:56, skipping insertion in model container [2023-02-16 01:17:56,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 01:17:56" (3/3) ... [2023-02-16 01:17:56,718 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_array-2-2.i [2023-02-16 01:17:56,750 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-16 01:17:56,751 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-16 01:17:56,815 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-16 01:17:56,835 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@56cf6e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-16 01:17:56,835 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-16 01:17:56,838 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 24 states have (on average 1.625) internal successors, (39), 25 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 01:17:56,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-16 01:17:56,842 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 01:17:56,843 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 01:17:56,843 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 01:17:56,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 01:17:56,846 INFO L85 PathProgramCache]: Analyzing trace with hash -385982491, now seen corresponding path program 1 times [2023-02-16 01:17:56,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 01:17:56,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174758604] [2023-02-16 01:17:56,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 01:17:56,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 01:17:56,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:17:56,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 01:17:56,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 01:17:56,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174758604] [2023-02-16 01:17:56,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174758604] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 01:17:56,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 01:17:56,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 01:17:56,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574324139] [2023-02-16 01:17:56,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 01:17:57,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-16 01:17:57,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 01:17:57,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-16 01:17:57,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-16 01:17:57,022 INFO L87 Difference]: Start difference. First operand has 26 states, 24 states have (on average 1.625) internal successors, (39), 25 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 01:17:57,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 01:17:57,034 INFO L93 Difference]: Finished difference Result 45 states and 66 transitions. [2023-02-16 01:17:57,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-16 01:17:57,035 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-02-16 01:17:57,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 01:17:57,040 INFO L225 Difference]: With dead ends: 45 [2023-02-16 01:17:57,040 INFO L226 Difference]: Without dead ends: 22 [2023-02-16 01:17:57,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-16 01:17:57,045 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 01:17:57,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 01:17:57,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-02-16 01:17:57,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-02-16 01:17:57,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 01:17:57,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2023-02-16 01:17:57,067 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 12 [2023-02-16 01:17:57,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 01:17:57,068 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2023-02-16 01:17:57,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 01:17:57,068 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2023-02-16 01:17:57,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-16 01:17:57,069 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 01:17:57,069 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 01:17:57,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-16 01:17:57,070 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 01:17:57,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 01:17:57,071 INFO L85 PathProgramCache]: Analyzing trace with hash -391523617, now seen corresponding path program 1 times [2023-02-16 01:17:57,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 01:17:57,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419201703] [2023-02-16 01:17:57,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 01:17:57,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 01:17:57,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:17:57,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 01:17:57,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 01:17:57,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419201703] [2023-02-16 01:17:57,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419201703] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 01:17:57,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 01:17:57,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-16 01:17:57,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353714605] [2023-02-16 01:17:57,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 01:17:57,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 01:17:57,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 01:17:57,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 01:17:57,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-16 01:17:57,324 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 01:17:57,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 01:17:57,399 INFO L93 Difference]: Finished difference Result 58 states and 68 transitions. [2023-02-16 01:17:57,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-16 01:17:57,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-02-16 01:17:57,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 01:17:57,401 INFO L225 Difference]: With dead ends: 58 [2023-02-16 01:17:57,401 INFO L226 Difference]: Without dead ends: 38 [2023-02-16 01:17:57,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-16 01:17:57,406 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 19 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 01:17:57,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 29 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 01:17:57,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-02-16 01:17:57,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 25. [2023-02-16 01:17:57,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 01:17:57,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2023-02-16 01:17:57,412 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 12 [2023-02-16 01:17:57,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 01:17:57,412 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2023-02-16 01:17:57,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 01:17:57,413 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2023-02-16 01:17:57,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-02-16 01:17:57,413 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 01:17:57,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 01:17:57,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-16 01:17:57,414 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 01:17:57,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 01:17:57,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1083884881, now seen corresponding path program 1 times [2023-02-16 01:17:57,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 01:17:57,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689413811] [2023-02-16 01:17:57,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 01:17:57,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 01:17:57,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:17:58,721 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-16 01:17:58,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 01:17:58,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689413811] [2023-02-16 01:17:58,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689413811] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 01:17:58,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552889037] [2023-02-16 01:17:58,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 01:17:58,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 01:17:58,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 01:17:58,741 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 01:17:58,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-16 01:17:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:17:58,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 35 conjunts are in the unsatisfiable core [2023-02-16 01:17:58,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 01:17:58,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2023-02-16 01:17:58,971 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-02-16 01:17:58,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 24 [2023-02-16 01:17:59,045 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 01:17:59,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 38 [2023-02-16 01:17:59,064 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-16 01:17:59,064 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 01:17:59,210 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 01:17:59,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 195 treesize of output 199 [2023-02-16 01:17:59,769 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:17:59,773 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:17:59,775 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:17:59,778 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:17:59,795 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 01:17:59,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 593 treesize of output 575 [2023-02-16 01:18:00,799 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-16 01:18:01,135 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-02-16 01:18:01,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 312 treesize of output 1 [2023-02-16 01:18:01,137 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:01,143 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-02-16 01:18:01,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 182 treesize of output 1 [2023-02-16 01:18:01,150 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-02-16 01:18:01,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 182 treesize of output 1 [2023-02-16 01:18:01,153 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:01,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 54 [2023-02-16 01:18:01,164 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:01,172 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-02-16 01:18:01,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 467 treesize of output 1 [2023-02-16 01:18:01,177 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:01,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2023-02-16 01:18:01,183 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:01,185 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:01,189 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:01,192 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:01,194 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:01,196 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:01,198 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:01,200 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:01,201 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:01,205 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:01,206 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:01,396 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 01:18:01,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 81 [2023-02-16 01:18:01,402 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 01:18:01,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 42 [2023-02-16 01:18:01,417 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:01,420 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:01,422 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:01,424 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:01,425 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:01,472 INFO L321 Elim1Store]: treesize reduction 5, result has 92.3 percent of original size [2023-02-16 01:18:01,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 605 treesize of output 530 [2023-02-16 01:18:01,478 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-16 01:18:01,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 471 treesize of output 379 [2023-02-16 01:18:02,165 INFO L321 Elim1Store]: treesize reduction 42, result has 35.4 percent of original size [2023-02-16 01:18:02,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 550 treesize of output 452 [2023-02-16 01:18:02,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 01:18:02,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 406 treesize of output 322 [2023-02-16 01:18:02,449 INFO L321 Elim1Store]: treesize reduction 34, result has 2.9 percent of original size [2023-02-16 01:18:02,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 186 treesize of output 1 [2023-02-16 01:18:02,453 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:02,455 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:02,460 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:02,469 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:02,471 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:02,474 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:02,476 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:02,479 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:02,481 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:02,493 INFO L321 Elim1Store]: treesize reduction 112, result has 0.9 percent of original size [2023-02-16 01:18:02,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 186 treesize of output 1 [2023-02-16 01:18:02,496 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:02,498 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:02,506 INFO L321 Elim1Store]: treesize reduction 112, result has 0.9 percent of original size [2023-02-16 01:18:02,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 613 treesize of output 1 [2023-02-16 01:18:02,510 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:02,511 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:02,556 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 01:18:02,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 313 treesize of output 277 [2023-02-16 01:18:03,159 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:03,161 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:03,162 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:03,164 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:03,166 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:03,168 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:03,170 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:03,172 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:03,174 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:03,176 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:03,178 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:03,179 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:03,224 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 01:18:03,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 127 treesize of output 191 [2023-02-16 01:18:03,523 INFO L321 Elim1Store]: treesize reduction 112, result has 0.9 percent of original size [2023-02-16 01:18:03,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 186 treesize of output 1 [2023-02-16 01:18:03,545 INFO L321 Elim1Store]: treesize reduction 112, result has 0.9 percent of original size [2023-02-16 01:18:03,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 316 treesize of output 1 [2023-02-16 01:18:03,594 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 01:18:03,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 420 treesize of output 380 [2023-02-16 01:18:06,438 INFO L321 Elim1Store]: treesize reduction 112, result has 0.9 percent of original size [2023-02-16 01:18:06,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 186 treesize of output 1 [2023-02-16 01:18:06,443 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,451 INFO L321 Elim1Store]: treesize reduction 112, result has 0.9 percent of original size [2023-02-16 01:18:06,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 56 treesize of output 1 [2023-02-16 01:18:06,454 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,463 INFO L321 Elim1Store]: treesize reduction 112, result has 0.9 percent of original size [2023-02-16 01:18:06,463 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 483 treesize of output 1 [2023-02-16 01:18:06,470 INFO L321 Elim1Store]: treesize reduction 112, result has 0.9 percent of original size [2023-02-16 01:18:06,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 613 treesize of output 1 [2023-02-16 01:18:06,478 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,480 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,482 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,503 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-02-16 01:18:06,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 1 [2023-02-16 01:18:06,506 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,511 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-02-16 01:18:06,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 1 [2023-02-16 01:18:06,515 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,518 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,519 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,520 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,525 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-02-16 01:18:06,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 196 treesize of output 1 [2023-02-16 01:18:06,531 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,536 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-02-16 01:18:06,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 261 treesize of output 1 [2023-02-16 01:18:06,538 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,543 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-02-16 01:18:06,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 1 [2023-02-16 01:18:06,547 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-02-16 01:18:06,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 169 treesize of output 1 [2023-02-16 01:18:06,550 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,552 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,553 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,555 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,556 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,558 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,560 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,561 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,563 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,565 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,567 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,569 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,570 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,574 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,577 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,579 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,580 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,584 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,585 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,586 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,589 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,591 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,593 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,595 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,598 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,599 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,604 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,611 INFO L321 Elim1Store]: treesize reduction 112, result has 0.9 percent of original size [2023-02-16 01:18:06,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 186 treesize of output 1 [2023-02-16 01:18:06,619 INFO L321 Elim1Store]: treesize reduction 112, result has 0.9 percent of original size [2023-02-16 01:18:06,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 316 treesize of output 1 [2023-02-16 01:18:06,622 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,630 INFO L321 Elim1Store]: treesize reduction 112, result has 0.9 percent of original size [2023-02-16 01:18:06,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 186 treesize of output 1 [2023-02-16 01:18:06,636 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,643 INFO L321 Elim1Store]: treesize reduction 112, result has 0.9 percent of original size [2023-02-16 01:18:06,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 56 treesize of output 1 [2023-02-16 01:18:06,646 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,656 INFO L321 Elim1Store]: treesize reduction 112, result has 0.9 percent of original size [2023-02-16 01:18:06,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 483 treesize of output 1 [2023-02-16 01:18:06,666 INFO L321 Elim1Store]: treesize reduction 112, result has 0.9 percent of original size [2023-02-16 01:18:06,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 613 treesize of output 1 [2023-02-16 01:18:06,670 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,672 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,674 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-16 01:18:06,777 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-16 01:18:06,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552889037] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 01:18:06,777 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 01:18:06,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 17 [2023-02-16 01:18:06,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250897169] [2023-02-16 01:18:06,777 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 01:18:06,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-16 01:18:06,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 01:18:06,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-16 01:18:06,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2023-02-16 01:18:06,782 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 17 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 17 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 01:18:07,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 01:18:07,105 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2023-02-16 01:18:07,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-16 01:18:07,105 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 17 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2023-02-16 01:18:07,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 01:18:07,106 INFO L225 Difference]: With dead ends: 39 [2023-02-16 01:18:07,106 INFO L226 Difference]: Without dead ends: 37 [2023-02-16 01:18:07,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-02-16 01:18:07,107 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 98 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 01:18:07,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 57 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 01:18:07,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-02-16 01:18:07,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 27. [2023-02-16 01:18:07,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 01:18:07,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2023-02-16 01:18:07,114 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 22 [2023-02-16 01:18:07,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 01:18:07,114 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2023-02-16 01:18:07,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 17 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 01:18:07,114 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2023-02-16 01:18:07,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-02-16 01:18:07,115 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 01:18:07,115 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 01:18:07,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-16 01:18:07,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 01:18:07,324 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 01:18:07,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 01:18:07,325 INFO L85 PathProgramCache]: Analyzing trace with hash -924768315, now seen corresponding path program 1 times [2023-02-16 01:18:07,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 01:18:07,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236567939] [2023-02-16 01:18:07,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 01:18:07,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 01:18:07,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:18:07,500 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-16 01:18:07,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 01:18:07,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236567939] [2023-02-16 01:18:07,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236567939] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 01:18:07,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [880804668] [2023-02-16 01:18:07,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 01:18:07,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 01:18:07,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 01:18:07,517 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 01:18:07,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-16 01:18:07,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:18:07,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-16 01:18:07,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 01:18:07,639 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-16 01:18:07,639 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 01:18:07,712 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-16 01:18:07,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [880804668] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 01:18:07,712 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 01:18:07,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 13 [2023-02-16 01:18:07,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389764689] [2023-02-16 01:18:07,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 01:18:07,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-16 01:18:07,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 01:18:07,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-16 01:18:07,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-02-16 01:18:07,713 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 01:18:07,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 01:18:07,871 INFO L93 Difference]: Finished difference Result 85 states and 95 transitions. [2023-02-16 01:18:07,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-16 01:18:07,872 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-02-16 01:18:07,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 01:18:07,872 INFO L225 Difference]: With dead ends: 85 [2023-02-16 01:18:07,872 INFO L226 Difference]: Without dead ends: 52 [2023-02-16 01:18:07,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 44 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-02-16 01:18:07,873 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 51 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 01:18:07,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 93 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 01:18:07,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-02-16 01:18:07,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 37. [2023-02-16 01:18:07,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 36 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 01:18:07,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2023-02-16 01:18:07,878 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 26 [2023-02-16 01:18:07,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 01:18:07,878 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2023-02-16 01:18:07,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 01:18:07,878 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2023-02-16 01:18:07,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-02-16 01:18:07,879 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 01:18:07,879 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 01:18:07,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-16 01:18:08,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-02-16 01:18:08,084 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 01:18:08,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 01:18:08,085 INFO L85 PathProgramCache]: Analyzing trace with hash 279637269, now seen corresponding path program 2 times [2023-02-16 01:18:08,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 01:18:08,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637746662] [2023-02-16 01:18:08,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 01:18:08,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 01:18:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 01:18:10,028 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 01:18:10,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 01:18:10,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637746662] [2023-02-16 01:18:10,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637746662] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 01:18:10,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668517543] [2023-02-16 01:18:10,028 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 01:18:10,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 01:18:10,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 01:18:10,045 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 01:18:10,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-16 01:18:10,110 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-16 01:18:10,110 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 01:18:10,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 53 conjunts are in the unsatisfiable core [2023-02-16 01:18:10,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 01:18:10,121 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-02-16 01:18:10,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2023-02-16 01:18:10,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-02-16 01:18:10,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-02-16 01:18:10,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-02-16 01:18:10,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-02-16 01:18:10,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 30 [2023-02-16 01:18:10,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 26 [2023-02-16 01:18:10,524 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-16 01:18:10,525 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 01:18:25,080 WARN L233 SmtUtils]: Spent 12.13s on a formula simplification that was a NOOP. DAG size: 63 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-16 01:18:41,982 WARN L233 SmtUtils]: Spent 10.30s on a formula simplification that was a NOOP. DAG size: 64 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-16 01:18:42,003 WARN L837 $PredicateComparison]: unable to prove that (or (not (< 1 (mod |c_ULTIMATE.start_main_~M~0#1| 4294967296))) (let ((.cse9 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296))) (let ((.cse3 (+ |c_ULTIMATE.start_main_~#A~0#1.offset| 4)) (.cse4 (* .cse9 4)) (.cse0 (<= .cse9 2147483647))) (and (or .cse0 (forall ((|ULTIMATE.start_main_~#B~0#1.offset| Int) (|ULTIMATE.start_main_~#C~0#1.offset| Int) (v_ArrVal_134 (Array Int Int))) (let ((.cse1 (store v_ArrVal_134 (+ .cse4 |ULTIMATE.start_main_~#C~0#1.offset| (- 17179869184)) (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_134))) (+ (select (select .cse5 |c_ULTIMATE.start_main_~#A~0#1.base|) (+ .cse4 |c_ULTIMATE.start_main_~#A~0#1.offset| (- 17179869184))) (select (select .cse5 |c_ULTIMATE.start_main_~#B~0#1.base|) (+ |ULTIMATE.start_main_~#B~0#1.offset| .cse4 (- 17179869184)))))))) (= (select .cse1 (+ |ULTIMATE.start_main_~#C~0#1.offset| 4)) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~#C~0#1.base| .cse1))) (+ (select (select .cse2 |c_ULTIMATE.start_main_~#B~0#1.base|) (+ |ULTIMATE.start_main_~#B~0#1.offset| 4)) (select (select .cse2 |c_ULTIMATE.start_main_~#A~0#1.base|) .cse3))))))) (or (forall ((|ULTIMATE.start_main_~#B~0#1.offset| Int) (|ULTIMATE.start_main_~#C~0#1.offset| Int) (v_ArrVal_134 (Array Int Int))) (let ((.cse6 (store v_ArrVal_134 (+ .cse4 |ULTIMATE.start_main_~#C~0#1.offset|) (let ((.cse8 (store |c_#memory_int| |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_134))) (+ (select (select .cse8 |c_ULTIMATE.start_main_~#A~0#1.base|) (+ .cse4 |c_ULTIMATE.start_main_~#A~0#1.offset|)) (select (select .cse8 |c_ULTIMATE.start_main_~#B~0#1.base|) (+ |ULTIMATE.start_main_~#B~0#1.offset| .cse4))))))) (= (select .cse6 (+ |ULTIMATE.start_main_~#C~0#1.offset| 4)) (let ((.cse7 (store |c_#memory_int| |c_ULTIMATE.start_main_~#C~0#1.base| .cse6))) (+ (select (select .cse7 |c_ULTIMATE.start_main_~#B~0#1.base|) (+ |ULTIMATE.start_main_~#B~0#1.offset| 4)) (select (select .cse7 |c_ULTIMATE.start_main_~#A~0#1.base|) .cse3)))))) (not .cse0)))))) is different from false [2023-02-16 01:18:42,014 WARN L837 $PredicateComparison]: unable to prove that (or (forall ((|ULTIMATE.start_main_~#B~0#1.offset| Int) (|ULTIMATE.start_main_~#C~0#1.offset| Int) (v_ArrVal_134 (Array Int Int))) (let ((.cse2 (+ |c_ULTIMATE.start_main_~#A~0#1.offset| 4)) (.cse3 (+ |ULTIMATE.start_main_~#B~0#1.offset| 4))) (let ((.cse0 (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_134))) (+ (select (select .cse4 |c_ULTIMATE.start_main_~#A~0#1.base|) .cse2) (select (select .cse4 |c_ULTIMATE.start_main_~#B~0#1.base|) .cse3))))) (= .cse0 (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~#C~0#1.base| (store v_ArrVal_134 (+ |ULTIMATE.start_main_~#C~0#1.offset| 4) .cse0)))) (+ (select (select .cse1 |c_ULTIMATE.start_main_~#A~0#1.base|) .cse2) (select (select .cse1 |c_ULTIMATE.start_main_~#B~0#1.base|) .cse3))))))) (not (< 1 (mod |c_ULTIMATE.start_main_~M~0#1| 4294967296)))) is different from false [2023-02-16 01:18:42,044 WARN L837 $PredicateComparison]: unable to prove that (or (not (< 1 (mod |c_ULTIMATE.start_main_~M~0#1| 4294967296))) (forall ((|ULTIMATE.start_main_~#B~0#1.offset| Int) (v_ArrVal_133 (Array Int Int)) (|ULTIMATE.start_main_~#C~0#1.offset| Int) (v_ArrVal_134 (Array Int Int))) (let ((.cse3 (+ |ULTIMATE.start_main_~#B~0#1.offset| 4)) (.cse2 (+ |c_ULTIMATE.start_main_~#A~0#1.offset| 4)) (.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base| v_ArrVal_133))) (let ((.cse0 (let ((.cse5 (store .cse4 |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_134))) (+ (select (select .cse5 |c_ULTIMATE.start_main_~#B~0#1.base|) .cse3) (select (select .cse5 |c_ULTIMATE.start_main_~#A~0#1.base|) .cse2))))) (= .cse0 (let ((.cse1 (store .cse4 |c_ULTIMATE.start_main_~#C~0#1.base| (store v_ArrVal_134 (+ |ULTIMATE.start_main_~#C~0#1.offset| 4) .cse0)))) (+ (select (select .cse1 |c_ULTIMATE.start_main_~#A~0#1.base|) .cse2) (select (select .cse1 |c_ULTIMATE.start_main_~#B~0#1.base|) .cse3)))))))) is different from false [2023-02-16 01:18:42,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2819 treesize of output 2815 [2023-02-16 01:18:42,133 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 01:18:42,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2886 treesize of output 2446 [2023-02-16 01:18:42,152 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 01:18:42,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2438 treesize of output 2078 [2023-02-16 01:18:42,175 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-16 01:18:42,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 88